Tenquille Area Avalanche

Quick report

Weather

sunny

Ride Type

alpineSlopes, mellowSlopes, openTrees

Riding Quality

ok

Snow Conditions

crusty, hard, windAffected

Avalanche Conditions

avalancheConditionSound

Avalanche

Run Length

500

Slab Width

100

Trigger Type

skier

Wind Exposure

leeSlope

Avalanche Size

2

Slab Thickness

70

Trigger Sub Type

accidental

Start Zone Aspect

N, NE

Start Zone Incline

30

Avalanche Character

windSlab

Number Of Avalanches

1

Start Zone Elevation

1950

Runout Zone Elevation

1750

Avalanche Observation

moreThan48hrsAgo

Start Zone Elevation Band

alp

Avalanche Occurrence Datetime

2025-01-12T00:25:00.000Z

Skier triggered. Group of 3 had already crossed over the slope. Skier in front noticed a whoomph and shooting crack and group decided to turn around. Skier at rear (now front) triggered reactive failure, which propagated westward across slope. Start zone was above the skier on 35 degree slope. Skier on lower angle. Skier caught in avalanche was carried 10-15ft before stopping. Sudden failure with crown propagation 100-150m. Slab thickness varied from 10cm-70cm. Majority of avalanche deposited snow on bench below cliff with a small amount running over the bench and close to the lake. Other small avalanches triggered further away as main volume of snow was moving. Skier was able to self rescue and stay on top of snow. Party skinned up and out of bowl via low angle supported slopes.

Incident

Group Size

3

Terrain Trap

cliff, gullyDepression, slopeTransitionOrBench, trees

Group Activity

skiing

Number Injured

0

Number Involved

2

Number Caught Only

1

Number Fully Buried

0

Snow Depth Trigger Point

variable

Terrain Shape Trigger Point

unsupported

Number Partly Buried Able Breathing

1

Number Partly Buried Impaired Breathing

0

see avalanche tab for writeup.